<template>
  <div class="login">
    <div class="login-con">
      <ul class="menu-tab">
        <li
          v-for="item in menuData"
          :key="'item'+item.type"
          :class="{ current: item.current }"
          @click="clickMenu(item)"
        >
          {{ item.txt }}
        </li>
      </ul>

      <el-form
        ref="ruleFormRef"
        :model="ruleForm"
        status-icon
        :rules="rules"
       
        class="demo-ruleForm">
        <el-form-item prop="username" class="item-from">
          <label for="username">邮箱</label>
          <el-input
            v-model.trim="ruleForm.username"
            type="text"
            autocomplete="off"
          ></el-input>
        </el-form-item>
        <el-form-item prop="pass" class="item-from">
          <label for="password">密码</label>
          <el-input
            id="password"
            type="password"
            v-model.trim="ruleForm.password"
            autocomplete="off"
            minlength="6"
            maxlength="20"
          ></el-input>
        </el-form-item>
        <el-form-item
          prop="passwords"
          class="item-from"
          v-show="model === 'register'"
        >
          <label>重复密码</label>
          <el-input
            type="password"
            v-model.trim="ruleForm.passwords"
            autocomplete="off"
            minlength="6"
            maxlength="20"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="submitForm(ruleFormRef)" type="danger" class="login-btn block">{{ model === "login" ? "登录" : "注册" }}</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="danger"  class="login-btn block" @click="resetForm(ruleFormRef)">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script lang="ts" setup>
import { reactive, ref,watch } from "vue";
import { ElMessage, FormInstance } from "element-plus";
// import * as verification from "../../util/verification"
import link from "../util/api"
import useMd5 from '../../hooks/useMd5.js'
import router from "@/router";

const menuData = reactive([
  { txt: "登录", current: true, type: "login" },
  { txt: "注册", current: false, type: "register" },
]);
const model = ref("login");
const ruleFormRef = ref<FormInstance>();

const ruleForm = reactive({
  username: "",
  password: "",
  passwords: "",
});

const clickMenu = (data:any) => {
  menuData.forEach((elem) => {
    elem.current = false;
  });

  data.current = true;

  model.value = data.type;
};

const checkUser = (rule: any, value: any, callback: any) => {
  // 创建邮箱正则来进行邮箱格式校验
  let reg = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/; 
  if (value==="") {
    return callback(new Error("邮箱不能为空！！"));
    // 调用验证（注意删掉之前的取反）
  } else if(!reg.test(value)){
    return callback(new Error("邮箱格式有误！！"));
  }else{
     callback();
  }
};


const validatePass = (rule: any, value: any, callback: any) => {
  let reg = /^(?!\D+$)(?![^a-zA-Z]+$)\S{6,15}$/;
  if (value === "") {
    callback(new Error("密码不能为空"));
  }else if(!reg.test(value)){
  callback(new Error("密码格式有误!6至15位的字母+数字"));
  } else {
    callback();
  }
};
const validatePass2 = (rule: any, value: any, callback: any) => {

  if(model.value === 'login') { callback(); } 
  if (value === "") {
    callback(new Error("重复密码不能为空"));
  } else if (value !== ruleForm.password) {
    callback(new Error("两次密码必须相同"));
  } else {
    callback();
  }
};
const rules = reactive({
  password: [{ validator: validatePass, trigger: "blur" }],
  passwords: [{ validator: validatePass2, trigger: "blur" }],
  username: [{ validator: checkUser, trigger: "blur" }],
});
console.log(rules)
let btnbool=ref(true)
watch(ruleForm,(newval)=>{
  console.log(newval)
  // 判断是登录还是注册
  if(model.value=='login'){
    // 登录
    if(newval.username!=""&&newval.password!=""){
      btnbool.value=false
    }else{
       btnbool.value=true
    }
  }else{
    // 注册
      if(newval.username!=""&&newval.password!=""&&newval.passwords!=""){
      btnbool.value=false
    }else{
       btnbool.value=true
    }
  }
})
const submitForm = (formEl: FormInstance | undefined) => {
  
  if (!formEl) return;
  formEl.validate((valid) => {
    if (valid) {
      // 判断是登录还是注册
      if (model.value == "login") {
        console.log("登录");
        // 登录请求发送
        link(`http://localhost:8089/register?username=${ruleForm.username}&password=${useMd5(ruleForm.password).value}`,"get").then(ok=>{
          // console.log(ok)
          let {data}=ok;//解构出数据
          // 判断data长度不为0登录成功
          if(data.length!=0){
            ElMessage("登录成功");
            router.push('./home')
          }else{
            ElMessage.error("登录失败")
          }
        })
      } else {
        // 把要发送的数据拼装成一个对象
        let data = {
          username: ruleForm.username,
          password:useMd5(ruleForm.password).value,
        };
        link("http://localhost:8089/register", "POST", data).then((ok) => {
          // ElMessage.error("注册失败");
          // 判断数据是否为空 不为空表示注册成功
          let { data } = ok;
          // 转成成数组判断长度即可知道对象是否为空
          if (Object.keys(data).length !== 0) {
            ElMessage("注册成功");
          //  把输入框的内容切换到登录
            model.value="login"
            // 把上面的切换按钮编程登录
            // 先把所有的的控制切换的变量编程false
              menuData.forEach((elem) => {
                elem.current = false;
              });
              // 在吧登录的编程true
              menuData[0].current=true;
          } else {
            ElMessage.error("注册失败");
          }
        });
      }
    } else {
      console.log("error submit!");
      return false;
    }
  });
};
const resetForm = (formEl: FormInstance | undefined) => {
  if (!formEl) return;
  formEl.resetFields();
};

</script>
<style lang="scss">
.login {
  background-color: #000066; 
  height: 100%;
}
html,
body,
#app {

  height: 100%;
}

.login-wrap {
  width: 330px;
  margin: auto;
}
.menu-tab {
  text-align: center;
  li {
    display: inline-block;
    width: 88px;
    line-height: 36px;
    font-size: 14px;
    color: #fff;
    border-radius: 2px;
    cursor: pointer;
  }
  .current {
    background-color: rgba(255, 255, 255, 0.5); 
  }
}



.demo-ruleForm {
  width: 30%;
margin: 50px auto;
  label {
    display: block;
    margin-bottom: 3px;
    font-size: 14px;
    color: #fff;
  }
  .item-from { 
    margin-bottom: 13px; 
    }
  .block {
    display: block;
    width: 100%;
  }
  .login-btn { margin-top: 19px; }
}

</style>